Home / 115,525.88-159,426.93-67,780.02

Finding the Fourth Proportional to 115,525.88, 159,426.93 and 67,780.02

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Solution

The fourth proportional to 115,525.88, 159,426.93 and 67,780.02 is: 93,537.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,525.88 : 159,426.93 = 67,780.02 : x
  2. Step 2: Convert to fraction form
    115,525.88/159,426.93 = 67,780.02/x
  3. Step 3: Cross multiply
    115,525.88x = 159,426.93 × 67,780.02
  4. Step 4: Simplify right side
    115,525.88x = 10,805,961,355.96
  5. Step 5: Solve for x
    x = 10,805,961,355.96/115,525.88
  6. Step 6: Final answer
    x = 93,537.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.